You couldn't be more wrong.
The Biogon is a 30+ year old design, intended for film. The Schneider Digitars and Rodenston Apo-Sironar digital lenses were designed specifically for use with digital backs, even taking into account as part of the optical design the 2mm thickness of the back's coverglass / IR filter, reduced image size, greater focal plan flatness. These are also true Aprochromats, something that the Biogon isn't; a necessity to avoid fringing.
Results with WA lenses on traditional MF cameras can be very good, but certainly nothing like what is possible with the latest digital specific lenses.